What is beamforming?

5G NR
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Hello All.

After completing today session, you will able to know exactly answer of below questions:

  • What is beamforming in 5G?
  • What is factors that effect beamforming performance?
  • What is 3D or FD beamfomring?
  • What are types of beamforming?
  • What is transmision mode ™ in beamforming?

What is beamforming
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How a User Equipment decodes the received beam from beamforming? Can UE generate beams to send data from UE to Base Station?

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UE knows which precoding was used for construction of that beam. Then data is retrieved from DM-RS demodulation.
Yes, to generate narrow beams you need more antennas though. So real “beams” are particularly visible in case of UE communicating on FR2 (mmWave bands).

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Hello dear experts.

Could you share which are the 3GPP standards that define beamforming?

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UE is not informed about beamforming.

Only about csi-rs ports and n1n2 configuration.

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Available in: 3GPP TS 38.214
Contains details about Type I and Type II Codebooks in 5G.